ENERGY RESEARCH CORPORATION COMPUTATION OF INCOME (LOSS) PER COMMON SHARE Three Months Six Months Ended April 30, Ended April 30, 1997 1996 1997 1996 ---- ---- ---- ---- PRIMARY Shares outstanding, beginning of period 3,921,124 3,758,573 3,911,787 3,728,914 Weighted average number of shares issued, retired and issuable share equivalents 290,101 320,985 295,372 305,626 --------- --------- --------- --------- Weighted average number of common and common equivalent shares outstanding 4,211,225 4,079,558 4,207,159 4,034,540 ========= ========= ========= ========= Net income $ 76,000 $ 124,000 $ 151,000 $ 185,000 ========= ========= ========= ========= Net income per common share $ .02 $ .03 $ .04 $ .05 ========= ========= ========= ========= FULLY DILUTED Weighted average number of common and common equivalent sharesoutstanding as adjusted for full dilution 4,281,225 4,275,558 4,277,159 4,230,540 Adjustment for interest, net of tax, on convertible long-term debt $ 6,000 $ 19,000 $ 12,000 $ 38,000 ========= ========= ========= ========= Adjusted net income $ 82,000 $ 143,000 $ 163,000 $ 223,000 ========= ========= ========= ========= Net income per common share <F1> $ .02 $ .03 $ .04 $ .05 ========= ========= ========= ========= <FN> <F1> These calculations are submitted in accordance with SEC requirements, although they are not in accordance with APB Opinion No. 15 because they are anti-dilutive. </FN>